Table of Contents
How many grades are there in WMM?
For the construction of the WBM roads aggregates are used in the sub-base, base and surface course and so the aggregates are divided into 3 grades according to their size. Grade 1 – particles of size 90 mm to 40 mm. Grade 2 – particles of size 63 to 40 mm.
What is the CBR value of WMM?
Results show that incorporation of Ganga sand to replace 20% proportion of stone dust of conventional WMM mix was found to improve the CBR value from 121% for conventional mix to 169%. This was while the same level of replacement with moorum had decreased the CBR value of WMM mix to a value of 94%.
What is WMM layer?
Wet Mix Macadam laying method contains of laying spreading and compacting of clean, crushed, well-graded granular materials on a prepared and Granular sub-Base. Wet Mixed Macadam (WMM) Base thickness of single compacted should not be less than 75 mm. WMM shall be laid in layers of 75mm or 100mm as per thickness.
What is difference between GSB and WMM?
The prime work of GSB is drainage system and secondary to support the load transfer to the sub-grade. WMM is a part of designed road section, thickness arrived from design calculations to withstand design load and ultimate transfer to sub0grade.
What is the density of GSB?
2.1 g/cc
Granular Sub Base (GSB) Road Material, Packaging Size: 50 kg
| Usage/Application | For Construction |
|---|---|
| Packaging Size | 50 Kg |
| Density | 2.1 g/cc |
What is full form of WMM?
WMM Full Form
| Full Form | Category | Term |
|---|---|---|
| White Mountain Motorsports | Sports | WMM |
| World Magnetic Model | Military and Defence | WMM |
What is the size of GSB?
Granular Sub Base (GSB) Road Material, Packaging Size: 50 kg
| Usage/Application | For Construction |
|---|---|
| Packaging Size | 50 Kg |
| Density | 2.1 g/cc |
What is 95% relative compaction?
95% compaction means that the soil on the construction site has been compacted to 95% of the maximum density achieved in the lab. It means that when you conduct compaction test(in the laboratory) on a small soil sample of a particular site. You get some value of maximum dry unit weight at certain moisture content.
What is standard Proctor density?
The standard Proctor is a laboratory test performed in order to determine the maximum dry density and optimum moisture content of a given soil. This test usually conforms to ASTM D698. The modified Proctor usually yields a higher maximum dry density of about 5% with relation to the standard effort (Proctor).
What is the density of wet mix sand?
DENSITY OF WET MIX MACADAM BY “SAND REPLACEMENT” METHOD Item of Work :: WET MIX MACADAM Density of Sand (gm/ cc) :: 1.408
Which is a benefit of the WMM process?
The WMM process allows constructing road faster than other processes Roads can be ready in no time and can be applied or topped with Bituminous layers soon after the laying process done Apart from that, the WMM machines are easily operated and give a bunch of benefits.
Which is cheaper to build WMM or WBM?
Though WBM process is cheaper than the WMM, the later gives plenty of benefits. In short, the outputs of WMM pay you of the debt. So, let’s find out the benefits we get from the WMM process.
What’s the maximum thickness for a WMM paver?
WMM can be laid in one or more layers, but the thickness of the single compacted layer not less than 75mm, and the maximum of 200mm when vibrating or other approved types of compacting equipment are used. The following sets of plant and equipment are necessary for Wet Mix Macadam works. WMM Paver (Sensor) – 01 No.
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